ID Please....

reefNetWork · 06/25/2006, 03:58 PM

Just found this on the front of my brother's tank. Does not look good to me but not sure. Anyone know what this is? thank you

reefshadow · 06/25/2006, 04:14 PM

Almost 100 percent sure that's a zoa eating nudi. Look very closely at any zoa colonies he has. If you can't see any, look again at night.

These things are AWFUL. It took me months to rid my tank of them.

I'll get you a pic up of mine.

reefshadow · 06/25/2006, 04:17 PM

reefNetWork · 06/25/2006, 04:31 PM

How do you get rid of these things? any fish or invert eat them? thanks

reefshadow · 06/25/2006, 07:21 PM

You can do fw dips on the zoa colonies, it will kill the nudis but not the zoas. I did 6 minutes dips in fw adjusted for temp and ph. If the infestation is bad you will need to do it every 3-4 days IME. You can also manually siphon or pick out the ones in the tank that you see. The big problem with the dips is that they will not kill the egg clusters. These look like little white swirls on the outside of the zoa stalks. You need to inspect very carefully for these and scrape them off, making sure they don't get back in the tank.

Some people report success with various species of wrasse, it is very hit and miss though, some people reported that their wrasses ate the nudis, some ate the eggs, and some won't touch either. What finally turned the tide for me after dipping for months was adding a six line wrasse. My wrasse ate the eggs but not the nudis. There is lots of info on the zoanthid forum about specific wrasses that may work.

These things are a real pest, breed very fast and are hard to eradicate.

good luck

06/25/2006, 03:58 PM	#1
reefNetWork Registered Member Join Date: Apr 2006 Location: Long Beach California Posts: 365	ID Please.... Just found this on the front of my brother's tank. Does not look good to me but not sure. Anyone know what this is? thank you __________________ William Current Tank Info: 80 gallon reef. 20 Gallon Sump. Little Giant MDQX - SC Pump. ASM G1x skimmer. 4x96 watt 50/50 PCs

06/25/2006, 04:14 PM	#2
reefshadow Registered Member Join Date: Jan 2003 Location: Central Washington Posts: 1,786	Almost 100 percent sure that's a zoa eating nudi. Look very closely at any zoa colonies he has. If you can't see any, look again at night. These things are AWFUL. It took me months to rid my tank of them. I'll get you a pic up of mine. __________________ All Your Coral Are Belong To Us Current Tank Info: 30 Deep Blue shallow mixed rimless, MP10, Ecoxotic LED's, SCA 301 skimmer.

06/25/2006, 04:17 PM	#3
reefshadow Registered Member Join Date: Jan 2003 Location: Central Washington Posts: 1,786	__________________ All Your Coral Are Belong To Us Current Tank Info: 30 Deep Blue shallow mixed rimless, MP10, Ecoxotic LED's, SCA 301 skimmer.

06/25/2006, 04:31 PM	#4
reefNetWork Registered Member Join Date: Apr 2006 Location: Long Beach California Posts: 365	How do you get rid of these things? any fish or invert eat them? thanks __________________ William Current Tank Info: 80 gallon reef. 20 Gallon Sump. Little Giant MDQX - SC Pump. ASM G1x skimmer. 4x96 watt 50/50 PCs

06/25/2006, 07:21 PM	#5
reefshadow Registered Member Join Date: Jan 2003 Location: Central Washington Posts: 1,786	You can do fw dips on the zoa colonies, it will kill the nudis but not the zoas. I did 6 minutes dips in fw adjusted for temp and ph. If the infestation is bad you will need to do it every 3-4 days IME. You can also manually siphon or pick out the ones in the tank that you see. The big problem with the dips is that they will not kill the egg clusters. These look like little white swirls on the outside of the zoa stalks. You need to inspect very carefully for these and scrape them off, making sure they don't get back in the tank. Some people report success with various species of wrasse, it is very hit and miss though, some people reported that their wrasses ate the nudis, some ate the eggs, and some won't touch either. What finally turned the tide for me after dipping for months was adding a six line wrasse. My wrasse ate the eggs but not the nudis. There is lots of info on the zoanthid forum about specific wrasses that may work. These things are a real pest, breed very fast and are hard to eradicate. good luck __________________ All Your Coral Are Belong To Us Current Tank Info: 30 Deep Blue shallow mixed rimless, MP10, Ecoxotic LED's, SCA 301 skimmer.